When I say that no one can defeat the Akatsuki besides Madara and a few others, I'm talking about every Akatsuki member individually at their prime, without ANY INFO on the Akatsuki warrior. Without info, there is a fraction of shinobi's who can defeat EVERY Akatsuki member individually in separate matches. Let's be honest, if Naruto isn't DBZ where the outcome of matches is determined by power rankings, then even if there are ninjas who are supposedly superior to the Akatsuki, there are barely an shinobi dead and alive who can:
Beat Deidara without info on C4, and his Doton Affinity.
Beat Sasori without info on his poison and puppets.
Beat a healthy, robust Pain without any info on the 6 paths of Pain and the Rinnegan.
Beat Rinnegan Tobi
Beat Kisame fused with Samehada without info on him
Beat Itachi without info on the Totsuka blade and Yata mirror
Beat Hidan without info on his curse jutsu
Beat Kakuzu without info on him
Beat Orochimaru without info on Edo tensei and his arsenal of abundant kinjutsu
I'm not saying that the Akatsuki are officially top 10 in strength, but based on feats I doubt any or barely any shinobi can beat EVERY Akatsuki member at prime strength, without ANY piece of information on their background and fighting tactics/techniques. For example, Kisame is stronger than Gai, but Gai still beat him. But Gai can't beat Hidan despite beating Kisame, because Hidan can't be killed through any of Gai's techniques.
Beat Deidara without info on C4, and his Doton Affinity.
Beat Sasori without info on his poison and puppets.
Beat a healthy, robust Pain without any info on the 6 paths of Pain and the Rinnegan.
Beat Rinnegan Tobi
Beat Kisame fused with Samehada without info on him
Beat Itachi without info on the Totsuka blade and Yata mirror
Beat Hidan without info on his curse jutsu
Beat Kakuzu without info on him
Beat Orochimaru without info on Edo tensei and his arsenal of abundant kinjutsu
I'm not saying that the Akatsuki are officially top 10 in strength, but based on feats I doubt any or barely any shinobi can beat EVERY Akatsuki member at prime strength, without ANY piece of information on their background and fighting tactics/techniques. For example, Kisame is stronger than Gai, but Gai still beat him. But Gai can't beat Hidan despite beating Kisame, because Hidan can't be killed through any of Gai's techniques.